PCV99 - 1980-81 8 Cylinder Pcv Valve

A PCV valve is a vacuum-controlled metering device that regulates the flow of crankcase fumes in the positive crankcase ventilation system by allowing more flow at high speed than at low speed. This valve acts as a system shutoff in case of engine backfire to prevent an explosion in the crankcase. It is recommended to replace your PCV valve during every tune-up

A PCV valve is a vacuum-controlled metering device that regulates the flow of crankcase fumes in the positive crankcase ventilation system by allowing more flow at high speed than at low speed. This valve acts as a system shutoff in case of engine backfire to prevent an explosion in the crankcase. It is recommended to replace your PCV valve during every tune-up

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